Electron-field-emission enhancement of cuo nanowires by uv illumination

Yen Ming Juan, Han Ting Hsueh, Tsung Chieh Cheng, Chen Wei Wu, Shoou-Jinn Chang

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

The authors report the successful growth of CuO nanowires by thermal oxidation of Cu film deposited on CuO/glass template. It was found that we could achieve a higher nanowire density, longer average nanowire length by increasing the Cu film thickness. It was also found that turn-on fields were 14.1, 11.4 and 8.3 V/μm, while the field enhancement factors were 378, 493 and 552, for sample A with 0.5-μm-thick Cu film, sample B with 1-μm-thick Cu film and sample C with 2-μm-thick Cu film, respectively. Furthermore, it was found that we could improve the field emission ability and reduce the turn-on field from by simply illuminating the samples with ultraviolet light.

Original languageEnglish
JournalECS Solid State Letters
Volume3
Issue number3
DOIs
Publication statusPublished - 2014 Mar 13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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